Breeding regions are OR. Breeding subregions are Malay Pen., Sumatra, Mentawai Is. (w of c Sumatra), Bintang, Riau and Lingga is. (e of c Sumatra), Bangka and Belitung (e of s Sumatra), Natuna Is. (nw of Borneo) and Borneo.
Sumber: IOC World Bird List, v
